Automatic Backup Watering System - ParvathiNair/Aquaponics GitHub Wiki

Materials Needed :

1. Soil moisture sensor
2. Small pump - Toy pump working on 5-6V is enough
3. Arduino
4. Pump Controller - a) Transistor - 2N2222A b) Resistor - 1K ohm
5. Drip Irrigation Kit
6. Connecting Pipe (i used 0.4" pipe) to connect the pump and the drip irrigation main line.

Backup Watering System_Theory